Demonstrators shout slogans during a protest against Egypt's President Hosni Mubarak in Milan February 1, 2011. Mubarak's grip on Egypt looked increasingly tenuous on Tuesday after the army pledged not to confront protesters who converged in Cairo in their tens of thousands to demand an end to his 30-year rule. REUTERS/Paolo Bona (ITALY - Tags: CIVIL UNREST POLITICS)